How-to Guide: Designing Conveyors with Plastic Modular Belts

 

In the fast-paced world of industrial automation, conveyor systems are the backbone of production lines, ensuring smooth and efficient transportation of goods. However, designing the right belt conveyor involves more than just choosing the components; it’s about understanding the nuances that make a system both functional and durable.


Key Considerations in Conveyor Belt Design

When designing a belt conveyor, there are several factors to keep in mind to ensure the system runs efficiently. These include:

  • Motor and gearbox selection: Choosing the right power source is essential for smooth operation.
  • Belt speed: The speed at which the belt moves can impact both efficiency and energy consumption.
  • Tension and take-up: Proper tensioning ensures the belt remains aligned and reduces wear.
  • Material handling: Different materials require different belt types for optimal transportation.
  • Distance and working environment: Environmental factors such as temperature and humidity can affect performance.

While these considerations lay the foundation for a functional conveyor system, advancements in technology have introduced superior alternatives to traditional designs, such as plastic modular belts.


Plastic Modular Belts vs. Traditional Conveyors: A Comparative Look

Traditional roller and cloth belt conveyors, widely used in various industries, come with their own set of challenges. Over time, roller conveyors suffer from chain pitch alterations due to metal fatigue, and bearings wear out quickly, increasing downtime for repairs and maintenance. This not only affects productivity but also leads to higher operational costs.

Plastic modular belts offer a revolutionary alternative. Unlike roller conveyors, plastic modular belts incorporate transmission and conveying into a single plane, eliminating the need for chains, bearings, and additional heavy components. They are lightweight, require minimal maintenance, and are significantly more energy-efficient. These belts can be installed and dismantled easily, require no lubrication, and last much longer, making them a smart choice for businesses looking to reduce downtime and energy costs.


The Pitfalls of PVC and Rubberized Cloth Belts

While PVC and rubberized cloth belts may appear more affordable initially, their long-term costs can outweigh their benefits. These belts lack a gear drive, leading to issues like belt wobbling and skidding over time. Additionally, they are prone to wear, with the fabric beneath the belt becoming exposed after minimal use.

On the other hand, plastic modular belts allow for localized repairs and are designed for durability. Their unique geometry ensures they last longer and can be repaired with ease, minimizing operational interruptions.


Common Mistakes in Conveyor Design

Designing a conveyor system isn’t always straightforward, and there are a few common missteps that can affect performance and longevity:

  1. Over-engineering the structure: Designers often make the mistake of adding unnecessary weight to the conveyor, believing it will improve durability. However, this increases friction, accelerates wear, and heightens energy consumption.
  2. Prioritizing price over quality: Selecting a conveyor solely based on its price without considering lifecycle and maintenance costs can lead to higher long-term expenses.
  3. Sticking to outdated technology: Decision-makers may resist adopting new, more efficient technologies due to unfamiliarity or perceived risks.
  4. Allowing customer specifications to dictate design: Often, designers follow client requests without questioning whether the specification is up-to-date or aligns with the latest advancements in conveyor technology.


The Superiority of Plastic Modular Belts Over Stainless Steel and other benefits

Stainless steel belts have long been a staple in heavy industries such as bottling, glass processing, and forestry. However, since the introduction of plastic modular belts in the late 20th century, these traditional stainless-steel systems are gradually being replaced by lighter, more efficient plastic alternatives.

Plastic belts weigh significantly less than their metal counterparts, reducing energy consumption and wear. Stainless steel, while durable, is prone to rust and is not as resistant to chemicals as plastic belts, which can withstand a wide range of substances due to their hydrocarbon structure. Additionally, the modular design of plastic belts ensures that the system can stop safely if a failure occurs, preventing extensive damage.

In contrast, stainless steel chains do not offer this level of protection and can continue running even when malfunctioning, leading to costly repairs.

Advantages of Plastic Modular Belts over PVC, Rubber or Polyurethane Belts

1. Durability and Longevity

Plastic Modular Belts:

  • Made from high-quality plastics such as polypropylene, polyethylene, and acetal, these belts offer excellent resistance to wear and tear.
  • They are less susceptible to cracking or fraying, leading to a longer lifespan.

PVC, Rubber, or Polyurethane Belts:

  • While generally durable, these belts can experience issues like cracking, stretching, or deterioration over time.
  • Exposure to harsh chemicals or extreme temperatures may shorten their lifespan.

2. Maintenance and Repair

Plastic Modular Belts:

  • Designed with interlocking segments, which allow for easy maintenance and repair.
  • Damaged sections can be replaced quickly without the need to replace the entire belt, reducing downtime and costs.

PVC, Rubber, or Polyurethane Belts:

  • Repairs are often more complex and time-consuming, requiring specialized tools or expertise.
  • In some cases, the entire belt may need to be replaced if a section is damaged, leading to higher maintenance expenses.

3. Hygiene and Cleanliness

Plastic Modular Belts:

  • Feature smooth surfaces and open hinge designs, making them easier to clean and minimizing bacterial buildup.
  • Ideal for industries where hygiene is a priority, such as food processing and pharmaceuticals.

PVC, Rubber, or Polyurethane Belts:

  • May have more crevices where dirt and bacteria can accumulate.
  • Cleaning can be more labor-intensive, requiring more frequent maintenance to meet hygiene standards.

4. Flexibility and Versatility

Plastic Modular Belts:

  • Highly customizable to fit different conveyor systems and applications.
  • Available in various configurations, such as straight-running, radius, and spiral designs, to meet diverse operational requirements.

PVC, Rubber, or Polyurethane Belts:

  • Offer less flexibility in customization and may not provide the same range of configurations as plastic modular belts.
  • Limited in their ability to handle more complex or varied conveyor layouts.


The Future of Conveyor Systems

As industries continue to modernize, the benefits of plastic modular belts are becoming increasingly clear. They offer improved durability, lower maintenance costs, and superior energy efficiency compared to traditional roller, cloth, and stainless-steel conveyors. These advancements reflect a broader trend towards adopting lightweight, high-performance materials that deliver cost savings and reliability.

With conveyor systems being the lifeblood of production lines, selecting the right design—one that prioritizes both technology and functionality—will play a key role in driving productivity and maintaining a competitive edge in today’s industrial landscape.

This article is provided by ÇAĞRI® ENDÜSTRI A.S.

About the Company
Founded in 1978, ÇAĞRI® ENDÜSTRI A.S. has been a trusted name in the industry, operating under the brand ALHAN®. With over four decades of experience, ALHAN® specializes in providing conveyor solutions, offering a wide range of modular parts and custom conveyor systems. The company’s expertise extends to the production of technical and engineering plastics, as well as precision-machined components and industrial aluminum profiles.

The company is proudly serve various sectors, including food and beverage, packaging, automotive, pharmaceuticals, and more. The ALHAN® innovative plastic modular belts and conveyor systems are designed to meet the specific needs of industries such as meat, fish, confectionery, and canned goods.

For more information, contact the company at [email protected] or visit the website at www.alhan-cagri.com.

 

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